Mark supervised profiles as such immediately when they're created.

chrome/browser/profiles/profile_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/profiles/profile_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 765 matching lines @@
   } else {
     last_session_exit_type_ =
         SessionTypePrefValueToExitType(exit_type_pref_value);
   }
   // Mark the session as open.
   prefs_->SetString(prefs::kSessionExitType, kPrefExitTypeCrashed);
   // Force this to true in case we fallback and use it.
   // TODO(sky): remove this in a couple of releases (m28ish).
   prefs_->SetBoolean(prefs::kSessionExitedCleanly, true);
 
+  g_browser_process->profile_manager()->InitProfileUserPrefs(this);
+
   BrowserContextDependencyManager::GetInstance()->CreateBrowserContextServices(
       this);
 
   DCHECK(!net_pref_observer_);
   {
     TRACE_EVENT0("browser", "ProfileImpl::OnPrefsLoaded:NetPrefObserver")
     net_pref_observer_.reset(new NetPrefObserver(
         prefs_.get(),
         prerender::PrerenderManagerFactory::GetForProfile(this),
         predictor_));
@@ skipping 413 matching lines @@
 PrefProxyConfigTracker* ProfileImpl::CreateProxyConfigTracker() {
 #if defined(OS_CHROMEOS)
   if (chromeos::ProfileHelper::IsSigninProfile(this)) {
     return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
         g_browser_process->local_state());
   }
 #endif  // defined(OS_CHROMEOS)
   return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
       GetPrefs(), g_browser_process->local_state());
 }